Ventilated shoe sole



1113111141931. WCRICK \1',soo,930

VENTILATED SHOE SOLE Filed Feb. 21, 1929 Patented Apr. 14, 1931 UNITED STATES YPATENT- OFFICE WALTER CRICK, OF NORTHAMPTON, ENGLAND, ASSIGNOR TO FREVVA LIMITED, OF LONDON, ENGLAND, .A CORPORATION OF GREAT BRITAIN VENTILATED SHOE SOLE Application filed February 21, 1929, Serial No. 341,808, and in Great Britain March 6, 1928.

This invention relates to boots and slices, and concerns mainly, though not exclusively, those constructed with soles of water-proof material other than leather, e. g. rubber or rubber composition and like mouldable substances suitable for the purpose.

The invention has particular reference to soles provided on the upper face thereof with projections which form between them channels, grooves, or like passages through which air can flow for Ventilating purposes, between the insole and the sole when the latter is applied to a boot or shoe.

The present invention has for its object the provision of an improved sole of this kind as will be hereinafter described.

According to the invention there is pro vided, in or for a boot or shoe, a sole of the kind referred to, characterized by the provision of an additional projection located around or partly around the projections aforesaid, and so formed as to make a watertight joint with the opposing part of the boot or shoe, when applied to the latter, said projection being flexible so as to be self-adjusting to the boot or shoe. j

By the phrase self-adjusting to the boot or shoe7 l mean that the said additional projection, by reason of its fieribility can readily conform or adapt itself to the opposing part of the boot or shoe, viz. the insole, or the inseam or equivalent, orboth of these parts, when the sole is applied to the boot or shoe,

to make the watertight joint.

The additional projection located as aforesaid is formed to fit `within the inseam or equivalent when the sole is applied to the boot or shoe, to render the latter more waterproof.

The expression inseam or equivalent is intended not only to include the inseam of a welted boot or shoe, but alsoany similar formation which may be found in boots or slices made by other methods, such for eX- ample, as the lasted edges of the upper (and liningl if provided) in a machine sewn boot or shoe. l/Vhen the insole of the boot or shoe has a marginal or inside channel, as, for eX- ample, in welted work, said additional pro jection may also enter this channel. In any case the projection is intended to make a watertight joint between the sole and the insole. A

It is preferred to construct theadditional projection so that it tends to bend or turn over outwardly when subjected to pressure. In this way a particularly effective joint is made. l i

The said projection may be endless, or may have a gap or opening therein to facilitate the formation of a joint with the shank of the boot or shoe, and the passageA of air through the channels, grooves, or the like passages. More than one gap or opening may be provided inthe projection if desired. Another groove or channel may be formed between the additional projection and those within the same.

A series of radiating buttresses or like formations may be provided exteriorly of and aroundthe additional projection so as to prevent the latter from turning or bending over unduly as aforesaid. These butt-resses or like supports also extend across and press into the inseam or equivalent, when the sole is applied to the boot or shoe bottom, and thus tend to make the boot or shoe still more watertight, and alsoprevent the insole from guttermg by supporting it. The said buttresses `or like formations are preferably tapered both longitudinally and transversely so as to enable them to accommodate or adjust themselves to the inseam or equivalent. By reason of this construction soles of the same `size may be applied to boots vand shoes bethe` Ventilating formation may be confined toY the forepart while the ladditional projection may be continued through thewaistleaving the centre of the sole vacant for reception of vthe shank.

In the following, further description ref- Figure 4 is a longitudinal section .of thev forepart of such shoe.

Accord-ingto ythe illustrative embodiment of the invention, a sole l, which Ina-y be made of.. rubber,l rubber composition or other Inoiildable material of the kind'her'einbefore mentioned, is provided centrally in the fore- Apart 2 with a series of llongitudinally disposed projections?) which form between them corresponding grooves or channels 4. Partially .surrounding the area formed by the projections is a lip, rib or like projection '5' which extend'slhigher than the projections 3, as 'shownin Figure 2. The lip or rib 5 is not 'eontinuous, i; e; it has a ygap or opening d formed therein at the end adjacent to the waist portion of the sole, and, in addition, the correspondingends ofthe projections 3 Vare bevelled orV similarly formed i. e. at 3a, S' Vthat the formation 0f a joint With the shan-lr 7 (Figure 4)' of the bootor shoe is iacilitated. As illustratedinFigure 2, the lip or rib 5 may be slightly undercut eXteriorly,

i5.l e. at 5u,- aiidformed at an angle or inclined 'iiteiiioll-y',A i. aty 5b', for a purpose hereinafter mentioned; R-adiating' buttresses 8, or like per face thereof with projections which form supports, which a-re tapered longitudinally -and ti'i-nsversely, as shown in Figures 1y and2, are provided suitable intervals round the otitside 'of said lip orv rib; Ii Idesired a groove or channel (not shown) may be provided between the projections 3 and the lp'or rib 5,v in eininunicatfin with the grooves 4 and 4also the-gap '6' to further facilitate the' flow of the :'iir'.- 7 j nefer'fingw Figures 3 and 4f, winnen@ Sole :i is app-ine as a; boot er Sheath@ aforesaid e'eifi'tral formation is located in the vspace formed bythe inseam- 9 or equivalent and may tli'ts replacethe usual bottom lling where would be otherwise provided. The rib erupt fas eatin the inseam, and tyfe'asea ef or@ aforesaid inganni-y er intima,

tion turns 'outwards Linder pressure, as will bc'onieevident by comparisonbetween Fig- 'ues 'ardli When the insole 10 has a chan- 'nel `l1' therein, the rib or lip 5 enters said channel and may' "or 'may not Yengage the channel lip forming-part 'of the inseam, while the 'hnt't'e's'ses 8j or like supports press into and adapt' ythei'nsolves transversely `ing'totheInjectorshoe. 5.1 A bootersneejsole provided;v on the up ford support to the lip or rib 5. Thus when the boot or shoe is in Wear a free How of air between the insole and sole is engendered by the pumping action. set up by the flexing ofthe sole and by the alternate application and` relief ofthe pressure of the foot thereon, the boot orshoe thus being efectually ventilated interiorly by passage of air through theusual small tack holes -which are present in the insole. The insole may be punched to permit passage of air but it is found that the small holes generally left in the insole when the tacks are employed to tackthe insoleupon the last dur-ing manufacture, 'are withdrawn, act as ventilation lholes to permit an air changeV to be effected in the interior of the boot or shoev duev to" the l movementofwalking; f

WhatI claim then is f l. A boot or shoe sole provided on the u-pper face thereof with projections which' form between them passages through'y whichV air can low for Ventilating .f purposes, and an additional marginal, opstanding projection formed' to fit within the inseam orequivalent,

to render the latter more waterproof.`

2. A boot or shoe sole provided on the up- Y watertight joint with the4 opposing part of lthe' boot er shoe, whenjapplied to the latter, i and buttres'se's extending outwards from the additional project-ion.

4; Av booter 4Shoe soie provided on um? ap-V per face thereof with projections which form between ther'n` passages through which air can flow for vetil'atii'ig" purposes, 'and 'an additional marginal, upstandii'ig projection formed to fit within the insearn o1" equivalent',

when the soleis' applied to the boot or shoe,to render' thealat'ter Ino're' waterproof, said prjection being fiexible so as to be self-adjustpe'r face thereof jvithfp'rojectios which form between then'r assagesthrdugh which alii-'can iiowfor venti ating purposes, and an addi tional marginal projection which is formed -higher thanfthe projections' 'aforesaid land watertight joint with the opposing of the bootlor shoe;- when applied 'to the latter, 'said pftjettioa Being-Henne Se as to kble self-adjusting torthehot shoe.

'when the sole is app'liedt'o the' boot or shoe,

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6. A boot or shoe sole provided on the upper face thereof with projections which form between them passages through which air can flow for Ventilating purposes, and an additional marginal projection so formed that it fits within the inseam or equivalent and tends to bend over outwardly under pressure when the sole is applied to the boot or shoe, to render the latter' more waterproof.

7. A boot or shoe sole provided on the upper face thereof with projections which forni between them passages through which air can flow for Ventilating purposes, and an additional marginal projection which is so formed that it extends higher than the projections aforesaid, and lits within the inseam or equivalent, when the sole is applied to the boot or shoe, to render the latter more waterproof.

8. A boot or shoe sole provided on the up-V per face thereof with 'proj ections which form between them passages through which air can flow for Ventilating purposes, and an additional marginal projection which is so formed that it extends higher than the proj ections aforesaid, and tends to bend over outwardly under pressure. to make a watertight joint with the opposing part of the boot or shoe, when the sole is applied thereto.

9. A boot or shoe sole provided on the upper face thereof with projections which form between them passages through which air can flow for Ventilating purposes, and an additional marginal projection which is so formed that it extends higher than the projections aforesaid, and fits within the inseam or equivalent, when the sole is applied to the boot or shoe, to render the latter more waterproof, said projection also being flexible so as to be self-adjusting to the boot or shoe.

l0. A boot or shoe sole provided on the upper face thereof with projections which form between them passages through which air can flow for Ventilating purposes, and an additional marginal projection which eX tends higher than the projections aforesaid, and is so formed that it fits within the inseam or equivalent and tends to bend outwardly under pressure,when the sole is applied to the boot or shoe, for the purpose set forth.

l1. A boot or shoe sole provided on the upper face thereof `with projections which form between them passages through which air can flow for Ventilating purposes, an additional marginal projection so formed as to malte a watertight joint with the opposing part of the boot or shoe, when applied to the latter, said projection being flexible, so as to be self-adjusting to the boot or shoe, and buttresses extending outwards from the marginal projection. l

12. A boot or shoe sole provided on the upper face thereof with projections which form between them passages through which air can flow for Ventilating purposes, an additional marginal projection formed to fit within the inseam or equivalent, when the sole is applied to the boot or shoe, and buttresses extending outwards from the marginal projection, for the purpose set forth.

13. A boot or shoe sole provided on the upper face thereof with projections which form between them passages through which air can flow for Ventilating purposes, an additional marginal projection formed so that it tends to bend over outwardly under pressure, when the sole is applied to the boot or shoe, and buttresses extending outwards from said projection, for the purpose set forth.

14.-. A boot or shoe sole provided on the upper face thereof with projections which form between them passages through which air can flow for Ventilating purposes, an additional marginal projection formed to lit within the inseam or equivalent, when the sole is applied to the boot or shoe, said proj ection being flexible, and buttresses extending outwards from the projection, all for the purpose set forth.

l5. A boot or shoe sole made of mouldable pliable material having moulded thereon a series of projections which form between them passages through which air can flow for Ventilating purposes, a marginal rib formed to malte a watertight oint with the opposing part of the boot or shoe, when applied to the latter, and tapered buttresses radiating outwards from the rib.

1G. A boot or shoe sole made of mouldable pliable material having moulded in the forepart thereof a series of projections which form between them passages through which air can flow for Ventilating purposes, a Inarginal upwardly tapered rib formed higher than and substantially around the projections aforesaid so as to fit within the inseam or equivalent, when the sole is applied to the boot or shoe, and buttresses radiating out- 1 wards from said rib and tapered both longi-` tudinally and transversely, all for the purpose set forth.

In testimony whereof I aiiix my signature.

WALTER CRICK. 

